就是那种DOS下的8.3的规范，
可以这样写 C:Progra~1
也可以这样写全名字的 "C:Program File"，因为这个路径中的文件夹名有空格，要用两个英文输入法下的双引号来引上
Progra~2 refers to Program Files
Progra~1 refers to Program Files (x86). The ~# is an old way of shortening file and directory names from back when Windows only supported 8 character names.